A Genuine Quarter-Filled Band Mott Insulator, (EDT-TTF-CONMe2)2AsF6: Where the Chemistry and Physics of Weak Intermolecular Interactions Act in Unison

A Genuine Quarter-Filled Band Mott Insulator, (EDT-TTF-CONMe2)2AsF6: Where the Chemistry and Physics of Weak Intermolecular Interactions Act in Unison

C1 symmetry and C sp 2–H···O and C sp 3–H···O hydrogen‐bond donor/acceptor ability of the title phase π‐donor are expressed by a glide plane (a ± c/2 repetition), uniform stacks, and a band structure quarter‐filled with holes. Conductivity and spin susceptibility data demonstrate strong Mott localiz...

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Bibliographic Details
Published in:Advanced materials (Weinheim) Vol. 15; no. 15; pp. 1251 - 1254
Main Authors: Heuzé, K., Fourmigué, M., Batail, P., Coulon, C., Clérac, R., Canadell, E., Auban-Senzier, P., Ravy, S., Jérome, D.
Format: Journal Article
Language:English
Published: Weinheim WILEY-VCH Verlag 05-08-2003
WILEY‐VCH Verlag
Subjects:
Conducting materials
Crystal engineering
Solid-state materials
Online Access:Get full text
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Summary:C1 symmetry and C sp 2–H···O and C sp 3–H···O hydrogen‐bond donor/acceptor ability of the title phase π‐donor are expressed by a glide plane (a ± c/2 repetition), uniform stacks, and a band structure quarter‐filled with holes. Conductivity and spin susceptibility data demonstrate strong Mott localization at ambient pressure which is weakened at high pressure. These results show that the 1/4‐Umklapp scattering channel is efficient enough for localization in 1D, strongly correlated electron systems.
Bibliography:We thank the CNRS, the Région des Pays de la Loire and the Région d'Aquitaine for support. We also thank Cécile Mézière for her contribution to the synthesis and Jean-Charles Ricquier for his help in preparing the illustrations. Work at Bellaterra was supported by DGI-Spain (Project BFM2000-1312-C02-01) and Generalitat de Catalunya (Project 2001 SGR 333).
ark:/67375/WNG-N81608D8-Z
ArticleID:ADMA200305247
istex:F9350083EFEC81D5B57DF5565B1B7144766E84D1
We thank the CNRS, the Région des Pays de la Loire and the Région d'Aquitaine for support. We also thank Cécile Mézière for her contribution to the synthesis and Jean‐Charles Ricquier for his help in preparing the illustrations. Work at Bellaterra was supported by DGI‐Spain (Project BFM2000‐1312‐C02‐01) and Generalitat de Catalunya (Project 2001 SGR 333).
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
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ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200305247